必躬必亲

Explanation: That everything must have its own handle. 　　Source: "Poetry Festival Xiaoya Nanshan": "Vladimir Vladimir bow pro, mass Vladimir believe." Changed to the "must bow must be pro." 　　Examples: Mrs. Darling who first came to office, will swear in every way ~, not somebody else clerks, Jia Ding, a matter within the door, both public and private, have to handle yourself. ★ "Strange two decades," the fourth six back